CN101436468B - Light-emitting board for prolonging dye sensitization solar battery operating time - Google Patents
Light-emitting board for prolonging dye sensitization solar battery operating time Download PDFInfo
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- CN101436468B CN101436468B CN2008102327402A CN200810232740A CN101436468B CN 101436468 B CN101436468 B CN 101436468B CN 2008102327402 A CN2008102327402 A CN 2008102327402A CN 200810232740 A CN200810232740 A CN 200810232740A CN 101436468 B CN101436468 B CN 101436468B
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- luminous material
- material layer
- glow luminous
- luminous
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
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Abstract
The invention relates to a luminescent plate, in particular to a luminescent plate which can prolong working time of a dye sensitized solar battery. The luminescent plate is characterized in that the luminescent plate comprises two glass plates which are parallel to each other, a long afterglow luminescent material layer (13) is arranged between the two glass plates, and the back face of one of the glass plates is coated with an aluminum film (14) with thickness of between 0.2 and 2mm. The long afterglow luminescent material of the invention can continuously light for more than 10 hours, the emission wavelength can be adjusted between 400 and 600nm at the same time, and the waveband just conforms to the strong absorption range of the dye in the battery, so that the luminescent plate can obviously prolong the working time of the dye sensitized solar battery. Therefore, the utilization ratio of sun light and the use efficiency of the prior dye sensitized solar battery are improved.
Description
Technical field
The present invention relates to luminous plaque, especially a kind of luminous plaque that is used to prolong the DSSC operating time.
Background technology
DSSC will become the representative of solar cell of new generation with its lower cost of manufacture and simple production technology.Extinction material in the DSSC is a dyestuff wherein; Because dyestuff has stronger extinction ability, so photoelectric conversion efficiency is preferably still arranged under the low light level, because the electronics that high light produces down is more; A large amount of anode electronics can not flow to negative electrode in the short time; But accumulate in anode, cause under the strong illumination, the photoelectric conversion efficiency of battery has reduced on the contrary.
Rear-earth-doped long-afterglow material is because its special level structure; Cause the electronics that is energized into conduction band temporarily to be strapped in the trap of band gap, electronics needs the regular hour from trap rebound conduction band, so can continue luminous more than 10 hours behind the long-afterglow material extinction; Though light intensity is in continuous decay; But still can reach the work light intensity of DSSC, especially when adopting the nanoscale long-afterglow material, because the defective of nano material is more; Cause stronger twilight sunset effect, the operating time of having the DSSC of long-persistence luminous plate has like this been prolonged greatly.
DSSC and rear-earth-doped long-afterglow material all are the novel products of developing in the early 1990s, will bring into play bigger effect if can the two organically be combined.
Summary of the invention
The purpose of this invention is to provide a kind of luminous plaque that is used to prolong the DSSC operating time, its light utilization efficiency is high, can effectively prolong the DSSC operating time after being used.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is:
A kind of luminous plaque that is used to prolong the DSSC operating time; Its special feature is; Comprise two parallel glass plates, accompany the long after glow luminous material layer in the middle of these two glass plates, wherein to be coated with thickness be 0.2～2mm aluminium film at a glass plate back side.
Wherein the long after glow luminous material layer is one deck nanometer long after glow luminous material that utilizes screen printing technique and temperature range to deposit on glass plate at 400 ℃～500 ℃ annealing technologies.
Wherein the long after glow luminous material layer thickness is 20～80 μ m, and the long after glow luminous material size is 30～50nm.
Wherein two blocks of glass are through confined space of formation glued together, and the long after glow luminous material layer is enclosed in this confined space.
Wherein the molecular composition of long after glow luminous material is R
1-x-yAl
2O
4: xEu
2+, yRE
3+, wherein R represents Ca or Sr, and RE represents Nd or Yb, 0.7≤x≤0.99,0.01≤y≤0.2.
Wherein the long after glow luminous material molecular composition is R
1-x-yS:xEu
2+, yRE
3+, wherein R represents Ca or Sr, and RE represents Nd or Yb, 0.7≤x≤0.99,0.01≤y≤0.2.
Compared to existing technology, the present invention has following advantage:
Because luminous plaque of the present invention is to adopt long after glow luminous material; At sunshine when sufficient; For fear of the shading of luminous plaque, can remove luminous plaque, when night; Can with luminous plaque be installed in DSSC over against the side, overcome blocking illumination when directly being deposited on luminescent powder on the electro-conductive glass in the prior art.
Long after glow luminous material of the present invention can continue luminous more than 10 hours; Its emission wavelength can be adjusted between 400nm-600nm simultaneously; This wave band is just meeting the strong absorption region of dyestuff in the battery; So this luminous plaque can prolong the operating time of dye-sensitized solar battery assembly more significantly, can improve the utilance of sunlight and the service efficiency of existing DSSC like this.
Description of drawings
Accompanying drawing 1 is the profile of luminous plaque among the present invention;
Accompanying drawing 2 is the stereochemical structure constitutional diagram of luminous plaque of the present invention and solar module;
Index path when accompanying drawing 3 is the luminous plaque extinction;
Accompanying drawing 4 is the index path of luminous plaque when luminous.
Embodiment
Come the present invention is done further detailed explanation below in conjunction with accompanying drawing:
The long after glow luminous material that the present invention uses is the material of comparative maturity in the prior art, and its molecular composition can be R
1-x-yAl
2O
4: xEu
2+, yRE
3+, wherein R represents Ca or Sr, and RE represents Nd or Yb, 0.7≤x≤0.99,0.01≤y≤0.2.
Also can be R
1-x-yS:xEu
2+, yRE
3+, wherein R represents Ca or Sr, and RE represents Nd or Yb, 0.7≤x≤0.99,0.01≤y≤0.2.
And long after glow luminous material layer 13 is to adopt prior art to be mixed with slurry, utilizes screen printing technique and temperature range on glass plate, to deposit the nanometer long after glow luminous material that one deck thickness range is 20～80 μ m at 400 ℃～500 ℃ annealing technologies then.
The technical scheme that technical solution problem of the present invention is adopted is: a kind of luminous plaque is provided; It comprises two glass plates; Wherein a side of a glass plate is coated with aluminium film reflector; The long-persistence luminous layer of opposite side deposition one deck is sealed in long-persistence luminous layer in the middle of two blocks of glass with another piece glass plate then, and two blocks of glass are glued to together.
The thickness of long-persistence luminous layer is 20～80 μ m, and the average grain diameter of nano-luminescent powder is about 30～50nm.
Like Fig. 1, shown in 2, Fig. 1 is the profile of luminous plaque.At first select a glass plate, the length of this glass plate and solar module or width sizableness are so that cover solar panel; This glass plate is the glass plate 12 among Fig. 1, and at a side AM aluminum metallization film of glass plate 12, promptly 14 among Fig. 1 is the aluminium film; Adopt the long after glow luminous material layer of screen printing technique depositing nano level then at the opposite side of glass plate 12, promptly 13 among Fig. 1 is luminous material layer, selects an other glass plate then; It is the glass plate 11 among Fig. 1; Glass plate 11 and glass plate 12 area equal and opposite in directions, the two is bonded together through solidifying glue 15, is sealed in long-afterglow material in the middle of two glass plates.
Controllable way is taked in the installation of luminous plaque, and as shown in Figure 2,21 is the luminous plaques shown in Fig. 1 among Fig. 2; The 22nd, solar module, the 23rd, the axle of luminous plaque 21, luminous plaque 21 can be done 180 ° rotation around axle 23; The opposite side of luminous plaque 21 is connected with steel wire 25 through steel wire 24, and steel wire 24 rotates luminous plaque 21 through fixed pulley 26 and fixed pulley 27 with steel wire 25 simultaneously, at sunshine during abundance; Steel wire 24 is put luminous plaque 21 become and 22 one-tenth 120 ° of positions of solar module with steel wire 25; In order to avoid luminous plaque 21 blocks the extinction of solar module 22, at sunshine when faint, steel wire 24 and steel wire 25 are with luminous plaque 21 pull-ups; Finally let luminous plaque 21 and solar module 22 be close together, to realize best extinction effect.
Index path when Fig. 3 has showed the luminous plaque extinction, the 31st, the daylight of irradiation, the 32nd, through the incident light after glass plate 11 refraction, the 33rd, incide the refract light on luminous material layer 13 surfaces, this part light can be absorbed and stores by luminous material layer 13.
Fig. 4 has showed the index path when luminous plaque 21 is luminous; The 41st, luminous material layer 13 is that send and incide the light in the glass plate 12; 42 is 41 light through 14 reflections of aluminium film, the 43rd, and a part 42 is added the light that luminous material layer 13 directly sends in this direction, and 44 is 43 light through glass plate 11 refractions; The 45th, the light that whole luminous plaque 21 sends promptly is radiated at the light on the solar panel.
The invention discloses a kind of luminous plaque that can be used for prolonging the DSSC operating time, it is the double glazing unit that is coated with light-emitting area and reflective surface, and this light-emitting area is made up of rear-earth-doped long-afterglow material, and reflective surface is made up of the aluminium film.Rear-earth-doped long-afterglow material comprises rare earth Eu
2+And Nd
3+Perhaps Dy
3+The aluminate of codope or sulfide; It is luminous more than 10 hours that long-afterglow material can keep after 15 minutes solar radiation; Emission wavelength can be adjusted between 400nm～650nm; This is just meeting the strong absorption bands of dyestuff in the DSSC, and DSSC has higher photoelectric conversion efficiency under low light condition simultaneously, can guarantee that like this operating time of DSSC prolongs more than 10 hours; Because the long-afterglow material cost is relatively low, this dye-sensitized solar battery assembly that is equipped with luminous plaque has higher cost performance.
Claims (2)
1. luminous plaque that is used to prolong the DSSC operating time; It is characterized in that: comprise two parallel glass plates and solar module; Accompany long after glow luminous material layer (13) in the middle of these two glass plates, wherein to be coated with thickness be 0.2～2mm aluminium film (14) at a glass plate back side; Two blocks of glass are through confined space of formation glued together, and long after glow luminous material layer (13) is enclosed in this confined space; Two parallel glass plate one sides are provided with axle; Opposite side connects two fixed pulleys respectively through two steel wires; Said axle cooperates two steel wires and two fixed pulley runnings, makes two parallel glass plates can do the rotation of 180 degree around axle with respect to solar module;
Wherein the long after glow luminous material molecular composition is R
1-x-yS:xEu
2+, yRE
3+, wherein R represents Ca or Sr, and RE represents Nd or Yb, 0.7≤x≤0.99,0.01≤y≤0.2;
Wherein long after glow luminous material layer (13) thickness is 20～80 μ m, and the long after glow luminous material size is 30～50nm.
2. a kind of luminous plaque that is used to prolong the DSSC operating time as claimed in claim 1 is characterized in that: wherein long after glow luminous material layer (13) is one deck nanometer long after glow luminous material that utilizes screen printing technique and temperature range to deposit on glass plate at 400 ℃～500 ℃ annealing technologies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102327402A CN101436468B (en) | 2008-12-09 | 2008-12-09 | Light-emitting board for prolonging dye sensitization solar battery operating time |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102327402A CN101436468B (en) | 2008-12-09 | 2008-12-09 | Light-emitting board for prolonging dye sensitization solar battery operating time |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101436468A CN101436468A (en) | 2009-05-20 |
| CN101436468B true CN101436468B (en) | 2012-08-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102327402A Expired - Fee Related CN101436468B (en) | 2008-12-09 | 2008-12-09 | Light-emitting board for prolonging dye sensitization solar battery operating time |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102324304B (en) * | 2011-07-20 | 2014-03-26 | 彩虹集团公司 | Electrolyte for dye-sensitized solar cells |
| CN102709344A (en) * | 2012-05-08 | 2012-10-03 | 常州天合光能有限公司 | Photovoltaic module |
| CN103640283A (en) * | 2013-12-11 | 2014-03-19 | 天津理工大学 | Laminated glass with long afterglow luminescent property and preparation method thereof |
| CN103956967B (en) * | 2014-05-15 | 2016-03-09 | 无锡同春新能源科技有限公司 | A kind of solar power station increasing generating quantity with long-persistence luminous material emission plate |
| CN105869894B (en) * | 2016-05-23 | 2018-06-26 | 中国海洋大学 | A kind of round-the-clock dye-sensitized solar cells and its preparation method and application that can be generated electricity in day and night |
| CN105895377B (en) * | 2016-06-07 | 2018-06-22 | 中国海洋大学 | A kind of all-weather solar battery that can be generated electricity at night and its preparation method and application |
| CN107731540A (en) * | 2017-10-25 | 2018-02-23 | 中国科学院武汉物理与数学研究所 | One kind can use long tense DSSC and preparation method thereof round the clock |
| EP3789830B1 (en) * | 2019-09-09 | 2024-04-03 | The Swatch Group Research and Development Ltd | Dial and method for manufacturing a dial for a watch |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1331269A (en) * | 2000-06-24 | 2002-01-16 | 大连路明科技集团有限公司 | Luminous plate and its preparing process |
| CN1949544A (en) * | 2006-10-30 | 2007-04-18 | 华中科技大学 | Visible light response solar energy battery |
-
2008
- 2008-12-09 CN CN2008102327402A patent/CN101436468B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1331269A (en) * | 2000-06-24 | 2002-01-16 | 大连路明科技集团有限公司 | Luminous plate and its preparing process |
| CN1949544A (en) * | 2006-10-30 | 2007-04-18 | 华中科技大学 | Visible light response solar energy battery |
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| CN101436468A (en) | 2009-05-20 |
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